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Abstract #1447

Variable-rate design of quieter slice-select pulses

Christopher J. Hardy 1 , Seung-Kyun Lee 1 , and Michael J. Wittbrodt 1

1 GE Global Research, Niskayuna, NY, United States

Slice-select pulses can be made quieter by derating them, i.e. by reducing gradient slew rate and/or amplitude (along with RF bandwidth), but this increases minimum echo time. The variable-rate principle is used here to design sliceselect pulses with improved acoustic signature and with identical slice profiles on-resonance, without lengthening pulse duration.

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